724691425920 has 512 divisors, whose sum is σ = 2883223848960. Its totient is φ = 150413721600.

The previous prime is 724691425903. The next prime is 724691425949. The reversal of 724691425920 is 29524196427.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 161291194 + ... + 161295686.

It is an arithmetic number, because the mean of its divisors is an integer number (5631296580).

Almost surely, 2^724691425920 is an apocalyptic number.

724691425920 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 724691425920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1441611924480).

724691425920 is an abundant number, since it is smaller than the sum of its proper divisors (2158532423040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

724691425920 is a wasteful number, since it uses less digits than its factorization.

724691425920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5624 (or 5612 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 724691425920 in words is "seven hundred twenty-four billion, six hundred ninety-one million, four hundred twenty-five thousand, nine hundred twenty".